Hose clamp



June .25, 1935.

v A. J. SCHOLTES HOSE CLAMP Filed June 29, 1934 Patented June 25, 1935 i 1 PATENT "OFFICE,

HOSE CLAMP Albert}. Scholtes, Baltimore, Md. Application-June 29, 1934, Serial No. 733,112

' 1c Claims. (01. 24-19) The present invention relates to a clamp adapted for use onhose, .pipes, and other objects or group of objects adapted to be" tightened or bound together with a clamp.

An object of the present invention is to provide a clamp which does not project outwardly to a very great extent beyond the band and which is constructed to be operated in relatively close and inaccessible places, and to provide a hose clamp which may be adjusted into tightened position and which cannot be released except upon breakage of the parts to insure the use 01' a new band in replacing the hose, pipe, or the like, and thus insuring proper clamping or securing action.

Another object of the present invention is to provide a hose clamp which is of relatively simple and inexpensive construction, and wherein the encircling band is looped at one side into a small loop and means is provided wholly within the loop for expanding the same, and thus reducing the effective binding length of the band.

The invention further provides an improved hose clamp which maintains a portion of an encircling band in loop form and utilizes a strip, or the like, with a simple and efi'ective means for winding. the strip upon itself to expand the wound strip within the loop, so that the loop maybe enlarged as desired for drawing the band taut, and wherein the winding device may be 01' any suitable or desired shape, configuration or construction, and may be removably connectedto the binding strip or otherwise as found expedient and desirable in the manufacture and use 0;! the clamp.

With the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out 'in the claims appended hereto.

In the drawing, wherein like symbols refer to like or'corresponding parts throughout the several views,

Figure 1 is a fragmentary perspective view oi a .hose clamp constructed according to the present invention, parts of the band and winding strips being broken away. 4

Figure 2 is an edge view of the hose clamp embodying the improvements of this invention.

Figure 3 is a similar view but with the clamp in tightened position upon a hose.

Figure 4 is a detail perspective view' of the buckle or looping plate.

Figure 5 is a perspective view or a slightly modified form of the clamp.

v fled form of the winding member, and

Figure 6 is a detail perspective view of a modi- 'Figure '1 is a similar view of another modified form 01' the winding member.

Referring now to the drawing, and first to Figures 1 to 4 inclusive, HI designates an encircling band which may be of any suitable material and length, but which in the present instance is shown as of strap form, and may be a strip of metal of sufiicient length to encircle the pipe or other object to be clamped and with suiiicient length to carry out the features of the invention.

One end ll of the band or strip I0 is threaded outwardly through an opening l2 formed transversely in a loop forming or buckle plate I 3, and is v overturned through the opening or slot I2 about a cross bar I4 and bent backwardly upon the body portion 0'! the band it, as shown in Figure 2 particularly. 'The cross bar M is provided preferably, as shown to advantage in in Figure 4, with a convex edge I5 adapted to engage the inner side of the overturned and H of the band so as to-bulge or distort the overturned portion of the band in such manner so as to insure the binding of the band onithe cross bar It to hold the band it from pulling, away from the buckle plate It. The buckle plate, It is provided with a pair of inwardly extending fingers it which are spaced from the cross bar, M andwhich are adapted to over==lie the outer face of the end ii of the band, the fingers i6 being slightly inclined outwardly from the band it to facilitate the introduction oi the free end Bl into and out of engagement with the under sides of the fingers by a slight edgewise sliding or buckling movement of the free endll.

The other end of the band or strap I0 is looped upwardly through a second opening l1 provided in the opposite end portion of the buckle or loop 'iorming member 83, the portion of the band l0 which extends through the opening l1 providing a small loop It, and the material of the band extends from the loop is back through the opening it or the buckle and is rolled about an intermediate cross bar it which separates the openings or slots i2 and H in the buckle l3. This bar I8 is also provided with a convex edge 20 similar to the edge I! of the cross bar I! and adapted to the same to .the bar ill.

The band It is tightened or contracted by enlarging the small loop 18, and this may be done in variousways. In the present instance, the expanding means is disposed wholly within the loop 58 so as not to project beyond the same and thus provide a clamp which occupies but relatively small space.

' the heads.3|.

therein the free end of the winding strip 2|, so

The means for expanding the small loop I3 comprises a winding strip 2| which may be of any suitable length and preferably disposed against the inner side of the band ll.

One end of the winding'strip 2| is passed outwardly through the opening in the buckle plate l3 and is rolled upon itself within the loop I! into successive layers, building up an expanding roll, such as shown at 22 in Figure 3. This expanding roll 22 enlarges the loop l8 by engaging the inner face thereof and a the end of the loop I8 is anchored to the cross ar H, the enlargement of the loop must necessarily draw the adjacent end of the band Ill outwardly through the opening I! of the buckle plate and consequently contracts the efiective portion of the band or clamp. The winding strip 2| may be rolled upon itself in any suitable manner, and in Figures, 1, 2 and 3, a cotter pin 23 is shown for this purpose. The split end of the cotter pin 23 is engaged over the end portion of the strip 2| and the eye of the cotter pin may be used for turning the pin to wind the strip 2| about the shank of the cotter pin. Any suitable implement may be inserted through the eye of the cotter pin to accomplish this purpose or any suitable clamping means or a wrench or the like may be engaged with the cotter pin so as to secure the strip in a compact roll 22. The band I0 is preferably constructed of metal, as also is the winding strip2l, and the winding strip is sufi'iclentiy pliable to be rolled'or bent into roll form and to maintain its rolled form or shape as shown in Figure 3. It will be noted that as the expanding roll is formed by the turning of the cotter pin 23, or

the like, the side of the roll 22 adjacent the bar I9 binds against the adjacent overturned end of and thus hold the loop l8 from pulling open. It will be noted that the sliding movement of the strip 2| during the winding action is in the same direction as that of the band In as the latter is contracted and drawn through the buckle opening It will be noted that the outer end bar 24 of the buckle plate has a rounded inner edge to freely receive thereover the band III as it is drawn to enlarge the loop IS. The fingers l5 are provided at their inner sides with notches or recesses 25 adapted to receive the edge portions of the end ll of the band when the latter is twisted or slid in an edgewise direction to free the band from the fingers I. In the modification shown in Figure 5, an endless band 28 is shown adapted to encircle a hose or the like, and one portion of the band 26 is formed into a small loop'2l' by a loop or buckle plate 23 provided with a single opening 29 therethrough- The small loop 21 is formed bymerely looping a portion of the band 26 outwardly through the opening 28. The small loop 21 is enlarged for contracting the band 26 by the winding strip 2| and winding member 23, such as shown in the above described form.

While various forms, shapes, and constructions of turning members 23 may be used, Figure 6 shows a double cotter key 38 having heads or eyes 3| on opposite ends and a split shank 32 joining The shank 32 is adapted to receive that the winding member may be turned from either end.

In Figure 7, a further modification of winding member is shown wherein a shank is adapted for The shank 33 carries rectangular or other 5111i;-

where the winding member is free at one end,

such as shown in Figures 1 and 5, or the winding member may be constructed to remain as a portion of the clamp when it is of such construction as shown in Figures 6 and 7. Of course, suitable forms may be used.

Whenjthe clamp is adjusted to the hose, as

' shown in Figure 3, or to any other article or articles adapted to be bound together, the turning member 23 is rotated to wind the strip 2| within the loop i8, so that the roll 22 of the strip gradually expands against the inner side of the loop l8 and enlarges the loop. In enlarging the loop l8, the adjacent end of the band 0 is drawn outwardly through the looping member or buckle l3, and the band is thus contracted about the hose, shown at 31, so as to bind the hose upon a pipe 38 or other part to be connected to the hose.

What is claimed is:

1. A hose and like clamp, comprising an enclosing band, a loop forming member connected to a portion of the band having a small loop therein, a rolling strip projecting at one end into the small loop, and winding means for the rolling strip engaging said end thereof and adapted to be operated to roll the strip upon itself in successive layers and provide an expanding roll within the small loop for enlarging thev latter and decreasing the effective length of the enclosing band. the band Hi to firmly lock it upon the cross bar l9 2. A hose and like clamp, comprising a loop forming member, an encircling band having'its ends connected'to said member and having one end portion looped outwardly through the memher, an expansion strip slidably disposed against the inner side of the band with an end passing through said member and confined within the loop of the band, and winding means engaging said end of the band and projecting laterally from the band loop adapted to be operated for winding the strip upon itself in successive layers to enlarge the loop and control the encircling band. 3. A hose clamp comprising a band for encircling a hose or the like, a plate having spaced transverse openings therein providing an end bar and two intermediate bars and having inwardly directed spaced fingers at its end remote from the end bar, one end of said band being overturned beneath said fingers and the adjacent cross bar of the plate with said fingers engaging the outer face of the overturned end of the band, the other end of said band being loopedthrough an opening of the plate adjacent the end bar and with its free end engaged with the ad-- jacent cross bar, a winding strip disposed against the inner side of the band and having an end engaging outwardly into the loop of the hand between the end bar and the adjacent cross bar, and a winding device engaging transversely in said loop of the band and with the end of the winding strip for turning the same to wind the strip into an expanding roll within the loop of the band.

4. A hose clamp comprising a band, a plate connected adjacent one end to one end of the band, the other end of the band being looped outwardly through the plate adjacent the other end thereof and being secured at its free end tothe w assesses plate, a winding strip disposed within the band having one end projecting into the loop of the band, and a transversely disposed winding member projecting into the loop and engaging the end of the winding strip for turning the same into an expanding roll to enlarge the loop and decrease the efiective size of the band.

5. A hose clamp comprising an endless band, a loop plate having a central opening through which a portion of the bahd is looped, a winding strip disposed within the band and having one end engaging through the opening in the plate and into the loop, and a winding device disposed transversely through the loop and engaging the end of said strip to wind the same into an expanding roll for enlarging the loop and reducing the effective size of the band.

6. A hose clamp comprising a band, a plate secured to the opposite ends of the band with one end portion of the band looped outwardly through the plate, a winding strip disposed against the inner side of the band adjacent the looped end thereof with one end or the strip projecting through the plate into the loop of the band, and winding means connected to said end of the stripwithin the loop for turning the strip to draw the same and the band toward the loop and for winding the end of the strip into an expanding roll to enlarge said loop, said winding strip adapted to frictionally hold the band against pulling out of said loop.

'7. A hose clamp comprising a band, a plate secured to the ends of the band and with one end portion of the band looped outwardly through the plate, a winding strip disposed against the inner side of the band with one end engaging through the plate and into the loop, and a cotter pin disposed transversely in the loop with the split shank thereof engaging the end of the strip for winding the strip upon turning of the cotter pin to provide an expanding roll to enlarge the loop.

'8. A hose clamp comprising aband, a plate secured to the ends ot-the band and having a portion of therband looped outwardly through the plate, a winding strip disposed against the inner side of the band with one end extending outwardly through the plate into the loop, and a winding shank disposed transversely through the loop and engaging the end of the winding strip and provided with turning heads on opposite ends for turning the shank and winding the strip into an expanding roll to enlarge said loop.

9. A clamp comprising an encircling band having a loop formed therein, a separate flexible element having one end thereoi' received in the loop, and feeding means cooperating with the element for forcing the successive portions thereof into the loop to expand the some; thereby contracting the band. I

10. A tightener, comprising an encircling band having large and small loops therein, a separate flexible element, and feeding means cooperating with the separate element for introducing the element gradually into the small loop and enlarging the same to reduce the size of the large loop; thereby contracting the same.

..11. A hose clamp, comprising an encircling band, a plate secured to the ends of the bandand having a portion of the band looped outwardly through the plate, a winding strip projecting at one end into the loop, and a winding shank disposed transversely through the loop and engaging said end of the winding strip and provided with turning heads on opposite ends for turning the shank and winding the strip into an expanding roll to enlarge said loop.

'12. A hose clamp, comprising a band, a plate,

attached to the ends of the band and having an opening therethrough for receiving an outwardly looped portion of the band, a winding strip having one'end extending into the looped portion of the band, and a winding device disposed transversely through the loop of the band and engaging said end of the winding strip and adapted to 'be turned for winding the strip on said device into an expanding'roll for enlarging said loop.

13. A tightener comprising an object engaging band having a loop therein, a separate flexible element, and gathering means cooperating with the element for forcing the flexible element into the loop of the'band to enlarge the loop and contract the remaining portion of the band; thereby to bind the band in position.

14. A clamp, comprising an object engaging band adapted to be placed about an object to be clamped, an independent flexible element, and gathering means cooperating with the element for spirally winding the element against the band at the side thereof to deform a portion of the band; thereby tightening the other portion of the band about the object.

15. A tightener for an encircling band to bind the same about an object, said band having an initial loop therein, comprising a flexible ele-.

same, thereby contracting the body oi the band about the object. I

16. A band tightener comprising a plate with an opening therethrough, an object encircling band having one end looped through the opening of the plate and secured thereto at the end of the loop, a winding strip portion associated with the band and adapted to enter the loop, and rolling means operable upon said winding strip portion for rolling the same into the loop for expanding the latter; thereby to enlarge the loop and contract the band on the object.

ALBERT J. SCHOLTES. 

